In the Function Reference for wp_get_attachment_image_src it says you can use an array to pull a specific size of a thumbnail. I've tried everything I can think of but can't get it to pull the size specified by the array. Here is my code:
$src = wp_get_attachment_image_src( get_post_thumbnail_id( $id ), array(160,90) );
It defaults to the thumbnail I'm assuming since the array isn't recognized. Suggestions?